Electric power systems
Computer Engineering | Computer Sciences | Electrical and Computer Engineering
This paper presents a new transfer impedance based system equivalent model (TISEM) for voltage stability analysis. The TISEM can be used not only to identify the weakest nodes (buses) and system voltage stability, but also to calculate the amount of real and reactive power transferred from the generator nodes to the vulnerable node causing voltage instability. As a result, a full-scale view of voltage stability of the whole system can be presented in front of system operators. This useful information can help operators take proper actions to avoid voltage collapse. The feasibility and effectiveness of the TISEM are further validated in three test systems.
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Wang, Yang; Wang, Caisheng; Lin, Feng; Li, Wenyuan; Wang, Le Yi; and Zhao, Junhui, "A New Transfer Impedance Based System Equivalent Model for Voltage Stability Analysis" (2014). Electrical & Computer Engineering and Computer Science Faculty Publications. 42.
Y. Wang, C. Wang, F. Lin, W. Li, LY Wang, and J. Zhao, “A new transfer impedance based system equivalent model for voltage stability analysis,” International Journal of Electrical Power & Energy Systems, Vol. 62, pp. 38–44, Nov. 2014.